Means for burning combustibles with improved calorific efficiency



F. H. BROWN 1,878,1Q5

MEANS FOR BURNING GOMBUSTIBLES WITH IMPROVED CALORIFIC EFFICIENCY Sept.20

Filed Oct 11, 1926 4 Sheets-Sheet a INVENTOR: Frazwis HBmw Sept. 20,1932. F. H. BROWN MEANS FOR BURNI NG COMBUSTIBLES WITH IMPROVEDCALORIFIC, EFFICIENCY 4' Sheets-Sheet 2 Filed Oct. 11, 1926 INVENTOR:Ram H Brown,

mm mm W WITNESSES Se t. 20, 1932.

MEANS FOR BURNING GOMBUSTIBLES WITH IMPROVED CALORIFIC EFFICIENCY FiledOct.

4 Sheets-Sheet 3- A Y M\ wsw IAUQDVTDR: Fmawis HBmu/w, BY r114lA770RNEKS Sept. 20, 1932.

F. H. BROWN MEANS FOR BURNING COMBUSTIBLES WITH IMPROVED CALORIFICEFFICIENCY FIG. 1m.

Filed Oct. 11, 1926 WITNESSES 4 Sheets-Sheet 4 INVENTOR:

' fiazzcz's H Broww,

ATTORNEYS.

Patented Sept. 2%}, SE32 s a snub? M a l.

FRANCIS El. BEGVVN, E BIBLE? PARK TOJ-VNSHIP, DELAWAB-E COUNTY, PENNSYL-VANIA MEANS FOR BURIIILTG GUlv'ZBUfiTIBiiES "W5 Application filedfictobe" 11,

lhis invention relates in its generic aspect to the burning ofcombustibles, while it more particular reference the combustion offluent fuels such oil, gas, powdered coals in suspension; andcompositions, coni- 'iounds or combinations of such fuels.

Specifically the presen invention provides a. novel mediod of attei .nga new or finely atomized condition for combustibles, and may includereciprocative and high-speed rotative tip members with associated meanswhereby such state of atomization is eblected. Hereinafter the improvedtate of atomiza 'on attained by my invention will be quali- -dsuperfine, r such analagous expression, in order to better distinguishthe same ever known methods and means adapted to esame ends. It s to benoted that my novel means tor and varying, or re nla run? aJ-ion, streambulk and direcf a combustible and atomize shear or the currents orearns. all center one point. Furtl and every one of the stated ac isvariable as desired by adjusting a single means or part, or each may bevaried independently of the othersrsuch adjusgbeing accomplishedmanually or autoin response to variations in an any combinattxicmincident to or resu .nt fromthe practic ll operation of theembodiment of tiis invention hereinafter described. as

the particular conditions of combustion orev lingf the manner ofcontrolling or regulating the draft and other factors, incidental to thedisclosed embodiments of this invention. is purely exemplary of how myinvention may be success'tully reduced to practice.

For clearer understanding of the invention I will now describe it indetail with reitto tie accompanying sheets of drawie subjoined cl. .'msserve to ine those features alleged as novel in the in the drawings Fig.l is a top plan view of a liquid-pow- 0 s. as well as the angularintersec-' H IMPROVED CALORIEIC EFFICIENCY Serial Ho. 140,975.

dered or gaseous-fuel burn-er embodying one typical assemblage of thepresent invenion, which is eiiective to successfully operin accoroancewith the novel method involved. Fig. la is a longitudinal section, to

ing to the right hand of Ill, and showing certain gears by dot-and-dashlines with associated arrows to indicate a possible di rection ofrotation for the respective gears.

Fig. V is an individual shifter means hereinafter fully explained.

Fig. V1 is a similar detail view of a. compound shifter means later onspecifically described.

Fig. Vll is an elevation of a Slightly modilied assemblage of theinvention with parts in section for a clearer illustration of certainunderlying details.

Fig. VIII and IX are detailed sectional views of a slightly differentform of burner tip, the latter being taken on the plane designated IXIXin Fig. VIII.

X and Kl are a sectional view and an axial section, respectively, ofanother form of burner tip embodying this invention, the former beingtaken approximately on the plane indicated by the arrows XX in thelatter.

Figs. KM and K111 are an end view and an atrial section, respectively,or an alternative form of the present invention; and,

Figs. XIV and XV are sectional illustrations of a still furtherembodiment of the present improvements.

In all views of the drawings like or corresponding parts are uniformlydistinguished by the same reference characters.

Referring more specifically to Figs. ll, Ia and H, oi"- the accompanyingdrawings, my novel type of fuel feed and atoinizing burner tions l, 5,respectively; or vice versa. These connections i, are fitted with flowcontrols in the form of plug valves 6, 7, respectively, the stemswhereof have attached crank members or manipulating keys 8, 9, theangled portions whereof are in the form of slotted sectors 10, 11.Adjustable relative to the sectors 10, 11, are slide'blocks-12, 13,having composite connecting-rods 1 pivoted on a common center pin 16passed through the outer end of a crank 17', whose other endconventionally laps an eccentric 18, on a shaft 19 journaledin bearings20, provided for the purpose, in the spaced extensions 21 of theaforesaidburner head 3. intermediate their ends the connecting-rods i l,are fitted with turnbuckles 22, whereby they are longitudinallyadjustable for apurpose later on explained. Splined on the upper end ofthe shaft 19 a pointer 23 adapted to traverse a raduated dial 24 whichmarked to indicate burner tip va illtions, and said dial is convenientlysupported by an angled portion rigidly secured to the adjacent headextension 21.

Referring again to the barrel portion 2 o' the-burner 1, the sameincludes inner coaxial pipes 26,2? each of which is longitudh nallymovable relative to the other well as with respect to the barrel2-through the medium of means, later on fully described. The portion 2,as hereinbefore noted, is conveniently screw-threaded at its inner endinto the head 3, while the outer :end thereof is fitted with a removablecuppednozzle 29, counter-bored at 29 to seat "the p rfor te tip plate30, that is held in place a fin. god anmnus or angular-section loci;-ing collar Similarly the llltQTlnQCliZttG pipe 26 is fitted with aremovable cup piece and a cap member said pipe and cup piece of smallerdiametns than the barrel 2 and nozzle 28, respectively, to afford aclearance for flow of, the fluent fuel. On the other hand, t asinnermost pipe 27 is of a diameter to provide a surrounding clearancerelative to the intermediate pipe 26 for flow of the atomizer medium,butthe cupped end there-of is of a diameter slightly less thanthat ofthe cup piece 32, with provision of a slight clearance 3?. The flatclosure wall 38 of the cupped end isbored and screw-threaded atintervals to receive a pilot nipple 39 and aseries of surrounding jettips 40, while it is to be particularly noted that the tip plate 30 andthe perforate end wall of the cap member 33 never actually contact sothat a very small quantity of atomized mixture may be supplied about thepilot nipple 39 when the device is shut down. As best appreciated fromFig. IV, the pilot nipple 39 is located axially central of the burner 1,whereas the surrounding tips 40 are arranged in vertical or horizontalrows and in relatively staggered relation. It will be seen in ill andIII that the pilot nipple 39 inwardly converges at lQS outer end, whilethe surrounding tips 40 are outwardly flared; and that both said nippleand tips pass through 1 apertures in the cap member 33 and tip plate 30.Furthermore, it is particularly noteworthy, that when the t ps 10approach the position shown 1n Fig. ll, the pilot nipple 39 1S retractedfrom the tip plate 30 and perforate end wall of the cap member 33 withprovision of a clearance 39, and vice versa. in other words when theburner 1 is shut dov"" 'l fl" m, as snown in iig. i, ue 1S CllS- chargedby way of the clearance 89 about the pilot nipple 39 withcombustion-support- 'ing atmospheric air discharging through the latterfor intersecting-shear therewith, in sufficient quantity to maintainsmall pilot flame, as will be readily understood by those acquaintedwith. the art or, when the device is shut down the tips 40 act as valvesto close the orifices in the plate 30 and cap member 33.

Referring again to the means for moving the pipes 26, 27 longitudinally,it is firstly to be observed that the former projects through the burnerhead 3 by way of an appropriate gland a1, while it is fitted at itsouter end with a gland device l2, having diametrically opposed pintles43, Fig. Il. Pivoted to the pintles 43 are composite connecting-rods 4%with interlitted turnbuckles l5in turn coupied to eccentrics 46 ontheshaft 19, hereinbefore referred to. Similarly, the open outer end of theinnermost tube 27 projects through and beyond the gland device 412 andisfitted with a pivoted yoke 47, held thereto by pintles 43 having acomposite connectingrod d8, and "turnbuckle 49, co-ordinated with theshaft 19 tnrough the medium of an eccentric 50. Incidentally, the endofthe tube 27 is provided with cut outs 69, for ingress of atmosphericair; while attention is directed to the fact that the center pin 16 forthe connecting rods 14, 15 is (lo-operative with asuitable guide 51Fig.Hconveniently secured to the outer face of the adjacent burner headextension 21, so that its movement aligns with the longitudinal axis ofthe burner 1. Clamp nuts 52 are provided in connection with the severalturnbuckles 22, 4:5 and 49, to lockall the respective adjustments of theentire burner 1 in varied relation, as required; while said turnbuckles22, and 49, serve to effect initial adjustment of the burner so that,when the eccentric shaft 19 is turned to shut down, the tips 40effectively close their associated oil and air delivery orifices-in theplate 30 and cap member 33, as well as for effecting proper adjustmentsnecessawhereby the nipple 39 and the valves 6, '2' are so positionedthat a pilot flame at said nipple results.

Assuming that the several eccentrics 18, &6 and 50, have been initiallyset fora predetermined Zero condition or fuel discharge at the tip plate30 to keep a pilot flame at the nipple 39 alight, when the burner 1 isshut down it will be apparent that by turning the shaft 19 through themedium of a hand wheel 19, Fig; 11 for example, and thereby moving thepointer 23 over the graduated dial 2%, I am enabled to minutely changethe form and character of the atomized combustible fuel dischargeeXteriorly at the jet tips 40 through the apertures in the plate 30 andend wall of the cap member 33 to meet all variations in load andcharacter of fuel or fuel condition, as well as to accommodate otherconditions incident to normal operation. On the other hand, variation inthe relative composition of the combustible discharge at the burner endis readily effected by adjustments in the lengths of the severalconnecting rods l4, 15, let and 48; whereby changes in the respectivepressures of the fuel and its atomizing agentas well as their proportionand direction of intersection at the tips 40 are minutely accomplished.

Assuming the respective eccentrics 46, 50 have been initially positionedor set relative to the eccentric 18-andits actuated connections-to givea desired predetermined flow of atomizing agent and fuel from thecontrol valves 9, 8, respectively, into the clearances 3d and 35, for aspecific discharge condition at the jet tips 40, with the pointer 23 ata zero indication on the dial 24:, it willbe evident that the controls 6and 7 are conse quently adjusted to accommodate the requisite flows offuel and atomizing medium for such condition. In accordance with thespecific disclosure the flow of fuel, is via the clearance 34:, betweenthe tip plate 30 and end wall of the cap member 33 to the outletperforations in said tip plate. Flow of the atomizer medium is via theclearances 35, 37, through the perforations in the end wall of the capmember 33 and outlet orifices in the tip plate 30: while flow ofatmospheric air is via the tube 27, jet tips 40, and pilot nipple 39.Atmospheric air for ignition and sup port of combustion when the deviceis in operation is drawn by way of the cut outs 69 into the pipe 27under the general action of the burner in an obvious manner. Control ofthe discharge condition at the burner end to regulate or vary the flowof oil and atomizer medium, in other words, the rate of combus- 7 tion,during operation of the burner, either manually or automatically, iseffected by simply turning the eccentric 19 carrying the pointer 23, thenecessary number of degrees over the dial 241: in the proper directiontoeffect opening or substantial closure of the reburner tips 40, and thepilot nipple 39, wherei,

as the fuel stream formation cap or member 33 is retracted relative tothe tip plate 30, incident to a reverse action upon the part of theeccentric 4601 vice versa. Thus it will be apparent an operator caneasily adjust the burner, or a co-ordinate series of such burnerdevices, to start combustion in a furnacefor example-equipped therewithto a maximum calorific ef iciency. @n the other hand, it is equallyobvious that the burner, or burners,

can be readily adjusted to accommodate any desired changes of fireeffect from the predetermined set condition by simple movements of theeccentric shaft 19 through the medium of the handle 19 carrying thepointer 23.

Referring now to Fig. 111, all elements having corresponding parts inthe preceding explanatory matter are similarly designated, and onlythose structural features varying therefrom will now be explained indetail to avoid repetitive description. The funda mental difference,however, in this form of my invention involves an aXial conduit 53,whichit will be seenconstitutes a continuation of the pilot nipple 39,and means whereby the sameas well as the ct tips 40" are all rotatablein unison. Attention is firstly directed to the pilot nipple 39 which isslightly inwardly-converged with its eX- terior surface conedcorrespondingly to the flare of the jet tips 40, to provide theclearance 39 as aforesaid. The conduit 53, where it projects through theyolre 47 is fitted with collars 54 which prevent longitudinal move mentrelative to said yoke, while permitting free rotation thereof. At itsfree end thconduit 53 has splined thereon a pulley 55, co-ordinated by abelt drive 56 with an appropriate motor 57, conveniently mounted on alateral projection 58 of one of the burner head extensions 21. To theextreme outer end of the conduit 53 l secure one element of a compositeconnecting-rod 59 having an intermediate turnbuckle 60; whereas theother element of said rod is fashioned to afford universal connection at61 with a head 62 on an eccentric sleeve 63. This sleeve 63 is mountedon the shaft 19, aforesaid, with provision for independent adjustmentthrough the me dium of a grasp 6etl5ig. V-so that the conduit 53, aswell as the inner pipe 27, may be simultaneously moved longitudinally,for a purpose hereinbefore set forth.

Splinedor otherwise securedon the inner end of the conduit 53 is apinion 65 functional to co-ordinate correspondingly toothed gears 66,one of-which is fitted to the inner end of each rotatively mounted jettip -O in the center vertical row, as viewed in relative longitudinalrelation of gear 65 on the conduit 53 meshes corre spondinglycothed andn arly stepped gears assoc wi' of the gears vertical row beforemenof thegears are coor inated for operation in unison as graphically indicatedby the arrows on g. IV.

In Fig. V1, 1 have illustrated combined means effective to independentlyvary the the interme diate pipe 26, well as the coupled pipe 27 andconduit 53. T his means di rs from that previously described byprovision of a handle'member 67 secured to the outer end of the shaft 19by a set screw 68-for example whereby said sha t and the eccen 'cs L6there on may be relatively turned with respect to the eccentric sleeve63. fitmosphe air to support combustion the burner up as before forth isupplied to the pilot nozzle 39 and jet tips lO by way of the pipe 27through cut outs 69, l igs. T

66' in each flan: ng

tioned, whereby all and Hi the I 7 outer end thereof flLlJOlIllDg 'hepivotec yoke 41?. The rotary conduit 53 is perforated locally at '50 sothat portion of the atmospheric air is diverted directly to the pilotnipple 39, while that fl Wing through the tube 27 commingles withatomizing m dium flowing about the cupped end 36 from the clearance 35for disribution about the jet tips l0, as will be readily appreciatedfrom an examination of the drawings.

The i; itial setting of this type of my invent'on, as well as thegeneral flow and con rol of th combustible constituents, in

spects, corresponds with the. forth in connection with the disclosure inl and H, with the exception that a inuiute quantity of the atmosphericair entering the tube 2'7,

by way of the cut out 69, passes into the axial conduit 53, through theperforations 70, and ;hereby ensures a continuous supply to the pilotnipple 39. Furthermore by provision of the means described to rotate theconduit 53 with the coordinate 1st t ps lO, and by forming said tipswith divergent outlet flares, I impart a cent gal fan-hire action to thedischarges there em and th i. by accelvcrate the velocity of bfibll fueland its atomizing medium, with a consequent al increased effectivenessof atomization and calo lc cfli-r ciency.

When it is desirable that tl.e atomizing agent be supplied to the burner1 under pressure, and the fuel fed the etc with forced feed I make useof the assemblage illustrated in Fi Vll, where-on all those partspreviously described are designated by corresponding referencecharacters; while it is to be noted that in this form of the inventlon 1preferably employ a burner similar in type to that shown in Fig. Hi. Inthis case the drive shaft 71 of the motor 57 is, how-' ever, extendedand journaled in bearings "72 secured on the lateral projection 58, andin addition to driving the belt 56 for rotating the conduit 53 it servesto directly drive a suitable compressor or blower 7 3. This com' 77communicating with the fuel feed connection 4-, and said pump isconveniently operated by a belt drive 78 from the motor shaft '1 Gaugeconnections are designated on the drawings at 79, and attachment theretoof the requisite instruments will be obvious without further explanationherein.

. The operation of this type of my invention conforms in all respects tothat set forth in connectii'm with Fig. ill excepting that the fuel andits atomizing medium are, respec tively, supplied under pressure andforced feed.

Attention is now directed to Figs. Ill and Vll to the provision withinthe burner head i 3 of stuffing-box 80 that serves to effectivelyseparate the fuel feed connection 4i from the atomizing mediumconnection while apertures 81 in the tube 26 afford adequatecommunication into the clearance intermediate said tube and the tube 27.Obviously, the compressed air connection 74: may be fitted with acontrol connection or branch 82- conventionally indicated by dottedlines in Fig. Vllcommunicating into the inner tube 27 and conduit 53, byway of an orifice 69, of the burner 1, so that high pressure air may besupplied to the pilot nipple 39 as well as to the several jet tips inwhich the pipe 527 will be non-rotatable.

lziaving described different forms and means for operating and varyingthe action of my novel burners 1, I will now briefly outline types ofnozzles therefor which have been found highly efficient in use.Referring firstly to Figs. Villll and IX it is to be noted that ldispense with the several cupped nozale pieces 28, 32 and 36 and clampthe tipplate 30 directly to the end of the barrel 2 by means of theflanged lock collar 31; while the single orifice in said tip-plate isflared to provide an inclined face 83, with that 8%- in the flanged endof the lock collar 31 at substantially right angles thereto. (in theother hand the intermediate pipe 26 is provided with a removable conedextension 85 having its outer end reversely beveled to aflikewise atapproximate right angles to one another. In similar manner the innertube 27 is fitted with a removable end piece 88 flared to correspond inangularity to the in clined edge 87, or what may be convenientlydesignated a forty-five degree curvature 89, while the tip edge 90 maybe reversely beveled at an angle of around ninety degrees thereto. Or,the respective angularities above described may be variously arranged toafford other desired interscctional flow rela tions. From tae foregoingit willbe noted that, when the several parts just described are in thezero or substantially closed position shown, the faces 83 and 86parallel one another with the tip edge 90 medial relative thereto;whereas the curvature 89 and face 87 similarly parallel and intersectthe above recited parallel faces 83, 86 at right angles.

To ensure accurate co-axial alignment of the pipes :26, 27, as well asto rigidly connect the same together, I fit the latter with an annularsleeve 91 havin radial arms 92 snu ly fitting the bore of the former,and retained immovable by set screws 93.

[atomization of the fuel with the just described assemblage of burnernozzle. it will be apparent, is effected by what may be con venientlydesignated as right-angular shearing-action of circular intersectingflows of fuel and atomizer medium, over the edge 86 and intermediate thefaces 87, 89, similarly directed into the combustion-supporting air,

flaring the discharged by the end piece 88, I

whereby a thoroughly vaporized combustible is obtained.

In Figs. X and XI I have illustrated a combination type of burner nozzleadapted to supply auxiliary gas to the super-atomized combustible andthereby augment its calorific intensity. Fundamentally this type ofnozzle embodies an annular channel 94:, formed in the cupped member 28with a service connection 95 from any convenient source of gas-notshown. This annular channel 94,

it is to be noted,'is comparatively narrow,

while the inner wall thereof is shortened at 93 relative to the outerwall so that the escaping gas is freely mixed with the liquid or othercombustible intermediate the tip-plate 30 and cap piece 33 on the innercup member 32. On the other hand this annular channel 94 may be utilizedas a return back-pressure line connection to a fuel pressure pump or itsequivalent. ttention is also directed to the outward flaring of thecentral portions of the tip plate 30 and paralleled end wall 97 of thecap piece 33, which jointly function to emit the escaping combustibleand gas at a definitely predetermined angle to the atomizing agentflowing over the truncated removabletip 98, on the outer end of theinner tube 927. Conveniently the radial arms 92 of the sleeve or collar91 in this form of my invention frictionally fit into longitudinalgrooves 99,

bustible mixture of correspondingly in creased flame intensity.

Figs. XII and XIII illustrate a further form of burner nozzle differingbut slightly from the type exemplified in Figs. II and III. In this formof my invention the pilot nipple 39 is dispensed with and use made ofthree et tips 100 which have their surrounding wall inclined outwardlywith a flare of any desired degree, while their perimetric edges areformed with a bevel bead 101 of a more acute angular section to givespread or distribution to the flame. In addition to the foregoingdistinctions I fit the removable closure plate 102of the cup piece32with tubular bushings 103, each having its bore tapered at 104: tocorrespond with that of the jet tips 100. In addition the outer freeends 7 of the bushings 103 are coned at 105 in correspondence with thecountersink portions 106 of the apertures in the tip plate 30 throughwhich the jet tips 100 project, so that the fuel flowing through theclearance 34 is caused to follow an undulatory course and impinge theouter wall of said tips at an acute angle relative to the intersectingflow of atomizing medium passing through the clearance 35; all as willbe readily understood on examination of the drawings. 7

In Figs. XIV and XV I have shown a still further form of burner nozzlein which the pipes 26, 27 have their respective nozzle ends 107, 108inwardly turned at substantially right-or other suitable-angles to theiraxes, so that the combustible flowing through the clearance 34 not onlyintersects the atomizing medium passing out of the inner pipe 27 at acorrect angle for any given condition of fuel and other pertinentfactors; but it also meets and combines with the combustion supportingcore of atmospheric or high pressure air emitted by the conduit 53thereby assuring instant ignition.

The operation of the tvpes of burners shown in Figs. XII to XV,inclusive, are deemed so obvious from the previous operativeexplanations and the other types illustrated and described as not tonecessitate further explanation herein.

It is desired to point out that by my invention variations in load andburner operation which require coincident and corresponding control invariation of fuel feed via the connection 4 and clearance 34, itsatomizing medium supplied by the connection 5 and clearance 35, airsupply to support combustion furnished by the pipe 27 and axial conduit53,

and other features and functions incident to such operation, are allaccomplished in an eflicient manner. Further important distinguishingcharacteristics of this invention relate to the novel manner whereby airis supas controls for the atomized fuel streams at the point ofdischarge and consequently regulate and vary the intensity of the flame.

Also it Will be noted that the design, formation of, and assembly of thevarious parts,

" medium in di ect their movement With respect to each other;

including the means affording an axial columnar core and jet ofcombustion supp orting atmosphericor high pressureair, are highlyimportant factors in the operation of my improved burner. In fact theyare of fundamental importance to the successful control of theflameintensity, While they also provide for the shaping, varying and regulation of the atomized fuel stream as it is discharged through-and fromthe tip structure 80., In the embodiments disclosed the atomized fuel.is discharged as a variable film, tubular in form, which surrouncs anatural, automatically variable, pressure according. to rate ofoperation, continuous core of atmosphericeor pressure-airg While all thesaid, respective, discharges of super-atomized combustible, atomizingmediums, and combustion-supporting air traverse eachv other at the exactpoint of discharge and ignition from the burner tip 30.

Finally the specific forms of my invention illustrated 1 re by Ways ofexamples only and are not to be restrictively regarded, as changes maybe effected in their assembly. as Well as other adaptations evolved,that will e fairly encompassed by reasonable interpretation accorded thefollowing claims.

7 Having thus described. my invention, 1 claim:

1 Means for atomizing combustibles comprising coincidentally movable andrelatively ustable coaxial tubular members adapted to form vai' bleburner outlets for intersecting discharge of fluent fuel and suitableatomizing and co-ordinate tubular means con rolling a corresponding flowof combustionsupporting gent directly into the atomized discharge.

2. Means for atomizino; combustibles com prising coincidenta y movableand relativelyadjussable coaxial tube members adapted toprovide-variable discharge burner outlets for fiowof a-fluent fuel and afluid atomizing intersect ng tubular form relation, and cool mate tubemeans controlling a commingli similar flow of c.tnospheric air across te atomized discharge.

v and vary intersecting shear of the fluent fuel I l v 1 [a I chargeoutlet-s for streams of a fluent fuel and l streams of air nuer pressureWhich directly shear eacn other in a common zone of emission, andcoordinately movable tube controlling an accelerat d flow of atmosphericair across the respective atomized discharges, whereby super-atomizationof the commingled mixture is effected.

in means for atomizing combustibles, combination of coincidently movableand, ively-adjustable coaxial tubular members hiding outwardly flaredjet tips and co-op perforate plate elements jointly aeapted to formtubular streams of a fluent .LllOl and similar streams of its atomizingagent that directly intersect each other, and

I lei conduit adapted to direct an axial flow of combustion supportingair across the atom zed tubular discharges to effect super- U thecombination of coincidently movable and l sly-ad ustable coaxial tubeshaving e end closures With co-operative jointly adapted to form tubular,of a fluent fuel and its atomizing medium, means operative to rotate theflared tips, and means for adjusting the spacial relation of the flaredtips and perforate closures to con 01 and vary the intersecting flow of,

said fluent fuel and its atomizing medium. 7

6. In a burner for atomizing combustibles, the combination ofcoincidently movable and relatively-adjustable coaxial tubes havingperforate end closures and co-operative flared tips jointly adapted toform tubulardis charges of a fluent fuel and its atomizing meearsoperative to rotate the flared tips neously, and means for axiallymoving in a burner for atomizing combustibles;

said flared tips and one of. the perforate 010:. .J

flared tips simultaneously, associated eccentries for adjusting thespacial relation of the flaring tips oneof the perforate closuresrelative to the other such element to control and atomizing medium, andmeans effective to supply a variable flOW' of pressure air through eachflaring tip.

8. In a burner for atomizing combustibles, the combination ofcoincidently movable and dium, gears operative to rotate all of therelatively-adjustable coaXial tubes having perforate end closures andco-operative flared tips adapted to form tubular discharges of a fluentfuel and its atomizing medium, gears operative to rotate all of theflared tips simultaneously, associated eccentrics for adjusting thespacial relation of the flaring tips and one of the perforate closuresrelative to the other to control and vary intersecting shear of thefluent fuel and atomizing medium, and conduit means effective to directa flow of pressure air through each flaring tip; the aforesaideccentric. conduit means also jointly functioning to vary and controlthe tubular stream bulk, relative intersecting flow, and the atomizedcombustible discharge.

9. In a burner for atomizing combustibles, the combination of stationaryand relativelyadjustable coaxial tubeshaving perforate end closures,co-operative flared tips adapted to form tubular discharges of a fluentfuel and its atomizin medium, intermeshing gear means operative torotate the flared tips, means for adjusting the spacial relation of theflaring tips and one of the perforate end closures relative to the otherto control and vary intersecting shear of the fluent fuel and atomizingmedium, a coincidently adjustable coaxial tube adapted to direct a flowof pressure air eilteriorly around each flar'ng tip, and a c'o-ordinaterotary axial conduit for supply of combustion supporting atmospheric airto the atomized combustible.

10. Apparatus for atomizing and burning fluent fuels comprising coaxialrelatively-ad justable tubes having cupped outflow ends ef fective toemit tubular flows of the fuel and its atomizing medium, perforateclosures at the outflow ends of said tubes with co-operative flaredtips, and eccentric means whereby positional variations of the aforesaidflared tips and perforate elements may be effected to control the flowand intersectional cutting of the respective discharges.

11. Apparatus for atomizing and burning fluent fuels comprising coaxialcoincidentlymovable relatively-adjustable tubes having cupped outflowends effective to discharge tubular flows of the fuel and its atomizingmedium, perforate closures at the outflow ends with co-operative flaredtips, gear means whereby the flared tips are rotatable, and relativelyadjustable eccentrics whereby the tips and one or more of the aforesaidtubes may be axially moved relative to another of the tubes to vary theangular outflow and intersection of the respective discharges.

12. Apparatus for atomizing and burning: fluent fuels including coaxialcoincidentlymovable relatively-adjustable tubes having cupped outflowends effective to discharge tubular flows of the fuel and its atomizingmedium, perforate plate closures at the tube outlet ends withco-operative, flared tips effective to converge the discharge flow and'tion-supporting control intersectional cutting of said fuel andatomizing medium, gears whereby the tips are rotated, co-ordinaterelatively adj ustable eccentrics whereby the tips and one or more ofthe aforesaid tubes may be axially moved relative to another of thetubes to varyingly form and control the bulk and intersecting flow ofthe fluent fuel and its atomizing medium, and means supplying combusairfor axial discharge through each flared tip.

13. Apparatus for atomizing and burning fluent fuels including coaxialcoincidentlymovable relatively-adjustable tubes having cupped outflowends eflective to discharge tubular flows of the fuel and its atomizingmedium, perforate plate closures at the tube outlet ends withco-operative flared tips effective to converge the discharge flow andcontrol intersectional cutting of said fuel and atomizing medium, aninwardly converged nipple located centrally of the flared tips servingas a pilot jet, gears whereby the tips and nipple are rotated,co-ordinate relatively adjustable eccentrics whereby the tips and one ormore of the aforesaid tubes may be axially moved relative to another ofthe tubes to varyingly form and control the bulk and intersecting flowof the fluent fuel and its atomizing medium, and one of the tubesaforesaid with an extension conduit from the nipples serving to supplycombustion-supporti air for atrial discharge through each flared tip andthe pilot jet;

In testimony whereof I have hereunto signed my name at Philadelphia,Pennsylvania, this 6th day of October, 1926.

FRANCIS H. BROWN.

